mirror of
https://github.com/samsonjs/arq_restore.git
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110 lines
3.9 KiB
Objective-C
110 lines
3.9 KiB
Objective-C
/*
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Copyright (c) 2009-2017, Haystack Software LLC https://www.arqbackup.com
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the names of PhotoMinds LLC or Haystack Software, nor the names of
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their contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#import "CryptoKey.h"
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#ifdef USE_OPENSSL
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#import "OpenSSLCryptoKey.h"
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#else
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#import "CCCryptoKey.h"
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#endif
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@implementation CryptoKey
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+ (NSString *)errorDomain {
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return @"CryptoKeyErrorDomain";
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}
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- (id)init {
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@throw [NSException exceptionWithName:@"InvalidInitializerException" reason:@"can't call CryptoKey init" userInfo:nil];
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}
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- (id)initWithPassword:(NSString *)thePassword salt:(NSData *)theSalt error:(NSError **)error {
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if (self = [super init]) {
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if ([thePassword length] == 0) {
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SETNSERROR([CryptoKey errorDomain], ERROR_NOT_FOUND, @"missing encryption password");
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[self release];
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return nil;
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}
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#ifdef USE_OPENSSL
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cryptoKey = [[OpenSSLCryptoKey alloc] initWithPassword:thePassword salt:theSalt error:error];
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// HSLogDebug(@"using OpenSSL");
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#else
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cryptoKey = [[CCCryptoKey alloc] initWithPassword:thePassword salt:theSalt error:error];
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// HSLogDebug(@"using CommonCrypto");
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#endif
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if (cryptoKey == nil) {
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[self release];
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return nil;
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}
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}
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return self;
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}
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- (id)initLegacyWithPassword:(NSString *)thePassword error:(NSError **)error {
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if (self = [super init]) {
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if ([thePassword length] == 0) {
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SETNSERROR([CryptoKey errorDomain], ERROR_NOT_FOUND, @"missing encryption password");
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[self release];
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return nil;
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}
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#ifdef USE_OPENSSL
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cryptoKey = [[OpenSSLCryptoKey alloc] initLegacyWithPassword:thePassword error:error];
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#else
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cryptoKey = [[CCCryptoKey alloc] initLegacyWithPassword:thePassword error:error];
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#endif
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if (cryptoKey == nil) {
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[self release];
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return nil;
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}
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}
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return self;
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}
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- (void)dealloc {
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[cryptoKey release];
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[super dealloc];
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}
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- (NSData *)encrypt:(NSData *)plainData error:(NSError **)error {
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return [cryptoKey encrypt:plainData error:error];
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}
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- (BOOL)encrypt:(NSData *)plainData intoBuffer:(NSMutableData *)theOutBuffer error:(NSError **)error {
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return [cryptoKey encrypt:plainData intoBuffer:theOutBuffer error:error];
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}
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- (NSData *)decrypt:(NSData *)encrypted error:(NSError **)error {
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return [cryptoKey decrypt:encrypted error:error];
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}
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- (BOOL)decrypt:(NSData *)encrypted intoBuffer:(NSMutableData *)theOutBuffer error:(NSError **)error {
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return [cryptoKey decrypt:encrypted intoBuffer:theOutBuffer error:error];
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}
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@end
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